Dental instrument water supply filter



FIG. 1 is a front perspective view showing my new design for a dental instrument water supply filter.

FIG. 2 is a back perspective view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a back side view thereof; and,

FIG. 6 is a front side view thereof. 

CLAIM The ornamental design for a dental instrument water supply filter, as shown and described. 